Duodenal duplication cyst and pancreas divisum causing acute pancreatitis in an adult male

Figure 1 A cystic lesion in the area of the distal common bile duct, bulging into the duodenal lumen is seen in the magnetic resonance imaging.

Figure 2 Pancreatography showed a blockage in the main pancreatic duct suggestive of pancreas divisum.

Figure 3 A cystic lesion found in the second duodenal portion, with three layer walls and debris inside the cystic cavity.

Figure 4 Contrast media is injected inside the cystic cavity with a needle knife.